这种笔记本很大，我需要四到六个月才能将一本用完，而那些用过的笔记本我都保存在抽屉里。
The notebooks are big, so it takes me four to six months to fill one up. I keep all of the old ones in a drawer.
这种笔记本很大，我需要四到六个月才能将一本用完，而那些用过的笔记本我都保存在抽屉里。
The notebooks are big, so it takes me four to six months to fill one up. I keep all of the old ones in a drawer.
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